@JAM thank you. Yes she did use an eyegaze device until a couple years ago when it got too difficult. I’d encourage trying them out and seeing what works, when your husband is ready to take that step.
Thank you for sharing your experience. Sorry I don’t have anything helpful to offer but reading others’ stories helps. My wife with bulbar onset is 39 and about 4 years in, and only has some slight eye movement left now.